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Medium severity5.5NVD Advisory· Published Mar 27, 2025· Updated Jun 17, 2026

CVE-2023-52940

CVE-2023-52940

Description

In the Linux kernel, the following vulnerability has been resolved:

mm: multi-gen LRU: fix crash during cgroup migration

lru_gen_migrate_mm() assumes lru_gen_add_mm() runs prior to itself. This isn't true for the following scenario:

CPU 1 CPU 2

clone() cgroup_can_fork() cgroup_procs_write() cgroup_post_fork() task_lock() lru_gen_migrate_mm() task_unlock() task_lock() lru_gen_add_mm() task_unlock()

And when the above happens, kernel crashes because of linked list corruption (mm_struct->lru_gen.list).

Affected products

10
  • Linux/Kernel9 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.1,<6.1.11
    • cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 6.1
  • osv-coords
    pkg:linux/kernel
    Range: >= 6.1.0, < 6.1.11

Patches

Vulnerability mechanics

References

2

News mentions

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